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The actor is survived by two children: Beau and Katie Cassidy. Beau is David's son with songwriter Sue Shifrin, his wife of 24 years, according to her biography on IMDB. Beau has followed in his parents' footsteps — according to his IMDB bio, he is a singer, songwriter and actor based in New York and Los Angeles. After attending Boston University School of Theatre, he starred as Freddy in the Netflix Original horror movie Mama Claus: Deck the Halls with Guts.

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"He's just one of the best people you'll ever meet in your life and it's that that I'm proud of," Cassidy told People magazine about his son in February.

Cassidy's daughter, Katie, hasn't yet responded publicly to the news of her father's death. In the February People magazine article, Cassidy, who was public with his struggles with alcohol abuse, described a strained relationship with his daughter with former model Sherry Williams.

"I wasn't her father. I was her biological father but I didn't raise her. She has a completely different life," Cassidy told People of his relationship with the Arrow and Gossip Girl actress. "I'm proud of her. She's very talented. It's hard for me to even accept how old she is now, like 30."

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Cassidy died in a Fort Lauderdale hospital Tuesday night after announcing earlier this year that he was diagnosed with dementia.

"David died surrounded by those he loved, with joy in his heart and free from the pain that had gripped him for so long," read a family statement released by publicist JoAnn Geffen. "Thank you for the abundance and support you have shown him these many years."